Service difficulty report · Torque Box · Boeing 747422

Difficulty date
October 1, 2006
Submitted
October 12, 2006
Operation
Air carrier
Aircraft
N116UA
Make and model
Boeing 747422
Aircraft serial
26908
Aircraft time
31,789 hours, 3,882 cycles
Engine
Pwa PW4056
Part
Torque Box
Condition
Punctured
Location
Fwd Cargo Bay
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FWD PIT TORQUE BOX AT STA 870 HAS A PUNCTURE ROUGHLY TWO INCH SQUARE. REMOVED DAMAGE, FABRICATED REPAIR WEB AND DOUBLER, PRIMED. REF SRM 51-70-13 REPAIR NR 1. INSTALLED REPAIR REF SRM ON FWD CARGO PIT TORQUE BOX TOP PLATE. AC OK FOR SERVICE. SUSPECT CARGO LOADING PROCESS CAUSED DAMAGE; PRY BAR SLIPPED OR ITEM DRIVEN INTO FLOOR WHEN PALLET/ L-CONTAINER POWER LOADED.